Apparatus for spreading liquid asphalt.



0. A. BALDWIN. APPARATUS FOR SPREADING LIQUID ASPHALT.

APPLICATION FILED DEO.2'7, 1907.

927,31 5. Patented July 6,1909

3 SHBETB-BHEET 1.

0. A. BALDWIN. APPARATU FOR SPREADING LIQUID ASPHALT.

APPLICATION FILED DEG. 27, 1907.

Patented July 6, 1909.

3 SHEETS-SHEET 2.

O. A. BALDWIN.

APPARATUS FOR SPREADING LIQUID ASPHALT.

APPLICATION FILED DEO.27, 1907.

Patented July 6, 1909.

3 SHEBTS-SHEET 3.

surface.

UNITED STATES PATENT OFFICE.

CHARLES ARTHUR BALDWIN, OF LOS ANGELES, CALIFORNIA.

APPARATUS FOR SPREADING LIQUID ASPHALT..

Specification of Letters Patent.

Application filed December 27, 1907.

Patented July 6, 1909.

Serial No. 408,325.

. To all whom it may concern."

Be it known that I, CHARLES A. BALDWIN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Apparatus for Spreading Liquid Asphalt and the Like on Roads, Courts, and

known as oiled roads is asphalt distributed on the surface in a liquid condition, which condition is only maintained when the asphalt is highly heated.

An object'of the invention -is to provide means whereby such highly-heated asphalt may be a plied with the greatest ease, economy anc comfort, to the surface to be treated.

A further object of the invention is to provide a liquid-distributing attachment for tank-wagons, by which the liquid can be applied to the surface in the most direct manner without liability of splattering or s lashing, and also to make provision where y the distributing device can be raised when ad.- visable, to avoid striking obstacles or to avoid engagement with the ground when passing over muddy or boggy roads or Streets.

-An object of the invention is to provide means that are adjustable for the purpose of applying a more or less limited amount of t e liquid material to the surface tobe treated, and to completely cover the surface evenl regardless of the size of the stream and t e amount of material delivered to such An object is to provide an oil distributer in which the weight of the heavy li uid will tend to'hold the valve closed when s ut, and from which the oil will be drawn downward by hydraulic pressure from the tank so as to be forced into'the loose earth to be impregnated with the oil.

Another object is to avoid the use of any leather or other soft packin s or gaskets and yet to allow adjustment o the distributer toward and from the surface to be oiled."

."lhe invention includes a heat-insulating tank and adjustable means for applying the contents thereof to the surface to be treated,

and embraces the various parts and combi nations of parts hereinafter more larlydescribed and claimed.

Other objects and advantages may appear from the subjoined detailed description.

The accompanying drawings illustrate the invention.

Figure 1 is a rear perspective view of a paratus embodying the invention. T e rout of the tank and ortions of the truck therefor are omitted rom the view. The

particudistributer is shown elevated for travel.

Fig. 2 is a sectional elevation of the distributer lowered and in use on line indicated by m x Figs. 4, 9 and 10. Fig. 3 is an enlarged detail on said line x t of the rotary distributer-valve closed. Fig. 4 is a rear elevation of the distributer broken to expose interior construction. Portions of the 0 erating levers and the feeders are shown. ig. 5 is a section on line indicated by r r Figs. 4, 9 and 10. Fig. 6 is a section on line indicated by xx Figs. 4, 9 and 10. Figs.

7 and 8 are fragmental bottom and top views res ectively of the rotary valve, the outer shel of which is shown in longitudinal section in each of these views. Fig. 9 is a bottom view of the distributor, portions being broken away to expose parts that would otherwise be hidden. Fig. 10 is a broken plan or to view of the valve and its hangers detached-From the distributer pipe. Fig. 11 is a fragmental, sectional view showing the connection between the feed-pipe and the branch feedpipes. Fig. 12 is a fragmental, perspective view of the apparatus with the distributer lowered for work. The seat-stir ru and seat are broken away.

The usual hoops for the wooden tank are omitted for convenience of drafting.

1 is a heat-insulating tank which may be made of wood or other heat-insulating 1118116? Y 4 approximately 200 degrees Fahrenheit, more ess, for a considerable length of time, thus to keep the material sufliciently fluid for sev eral hours to allow distribution of all of the same without liability of clogging the dis tributer as the charge in the tank becomes low. Said tank is mounted upon a suitable truck 2, the sills 3, 4 of the frame of which project rearwardly beyond the rear end of the tank.

5 is'a feed pipe provided with two branch tor-pipe 12 by suitable hangers 15 fastened feed pipes 6 which are screwed into a tee 7 with a ong threaded portion 8 so as to allow a limited rotation for swinging the feed ipes bodies of'the feeders when that isv desired.

Said sections 9 form s aced inlets to a distributer-pi e 12 which 1s fixed to and carried by the fee pipes, and is made of a straight tube having its ends closed by screw-threaded plugs 13. 1

14 is a valve-shell provided with and. detachably or otherwise fixed to the distributo t e distributer-pi e 12 by suitable means, as screws 16. The angers fit the distributer-pipe 12 liquid tight, and registering slotted passages 17, 18, are provlded throu h the under-side of the distrlbuter 12 and t e top side of the hangers respectively, whereby liquid may flow into the shell from the distrlbuter-pipe 12. The shell 14 has a cylindrical bore, the ends of which are stopped by plugs 19 removably screwed thereinto.

29 designates rotary valve-sections which in the form shown are three in number, each formed of a tube fitted liquid-tight in the bore of theshell 14 and provlded on the upper .side with longitudinal slots 21 of approximately the same length as, but of greater width than the slots 18 of the hangers, so that each section 20 maybe rotated throughout a considerable are without closingcommunication between the distributor-pipe 12 and the interior of such valve-section. The under side of each valve section is provided with outlets 22 in the form of a row of perforations which are of less diameter than the width of the slots 21, and are ada ted to register with a corresponding 'rowo outlets 23 extending along the bottom of the shell.

24 designates arms having screw-threaded portions 25 and extending respectively through circumferential slots 26 in the rear side of the valve-casing 14. Said screwthreaded portions 25 are respectively screwed throu h the inner valve sections 20, thus affordlng substantial means for partially rotating the rotary valve-sections 20 respectively.

The pur ose of providing three valve sections 20 withinthe valve-shell is to enablethe operator to control the fiowof the liquid.

'. from the distributor at three se arate sec-j tions thereof, so that in practice operation when the apparatus is-moving along a street and all of the valve sections are turned to the open position, a sheet of ii 'uid 27 equal in width to the length of the t ree valved sections 20 will be allowed to flow from the valve and spread over the ground; and if it is desired, the middle section may be adjusted to shut off the flow of liquid while the two end sections are allowed to be open; or, one of said end sections may be closed while the other is open. In this way any or all of the three sections may be employed as desired. The perforations 22 in thevalve sections are of such size relative to the distance they are spaced apart that when: liquid flows out t rough the outlets 23 the several streams will runtogether, thus s reading the liquid over theground evenly a ong the full line of each section, and the thickness of the stream from any section may be regulated by moving the arm 24 to an appropriate position for that purpose. When said arm 24 is fully depressed the dperforations 22, 23 will be fully opened, an the same may be closed by gradations through theupward movement of the arms 24. The arms 24 are operable by links 28 and bell-crank-levers 29. Each of said levers 29 terminates in a handle 30 at the middle of the space between the rearwardlyprojecting sills 3, 4, to be in ready reach of an operator mounted on a seat 31 carried by a 'stirru 32 that is mounted on said sills 3, 4.

33 esignates a Windlass mounted in bearings 34 on the sills 3, 4, and rovided with a hand-wheel 35 between sai sills, whereby the Windlass may be rotated to wind flexible connections as chains 36 which are connected with the distributer-pi e 12 by links 37 and pivot bearings 38 to w ich the links are pivoted by detachable pivots 39.

' 40 designates a ratchet device to hold the Windlass stationary to support the swiveled distributor pipe, and its connections. The links 37 are mounted to slide up and down between guide pins 41 and engage the 0 posite sides of the sills 3, 4 to prevent disp acement of the distributer relative to thetruck frame. F

The swiveled distributer is su plied from the tank through the usual ml; valve 42, which is connected by a rod 43 with a lever 44 carried by a standard 45 on said tank and operated by a line 46 which swings down into reach of the operator for manual operation from the seat 31.

In ractice, the apparatus is to be operated y two persons, a driver seated on the usual drivers seat, not shown, at the front of the vehicle, and an operator seated on the o erators seat 31, at the rear of the mac ine; said 0 erators seat being located at a suitable helght'rearwardly of the distributer pipe, which may serve as a foot-rest for the operator. When the 0 erator is in position'on the seat 31, the evers 29, hand wheel 35, ratchet 40, and valve line 46 are all within his reach for manual operation from said seat. 5

When it is desired to transport the road oiler without distributing oil or asphalt, the

operator will throw the valve levers 39 forway. W on he desires to begin the operavalve-section t tion of oiling he will grasp the hand wheel,

.loose'n and release the ratchet 40 and lower sections to position to open the outlet from a the valve case. He may then open the valve 42 as desired, and the oil will flow from the tank into the distributeripe and into the valvecase, assing through each rotaryhat is open, and escaping through the valve-case at the outlet thereof. In the meantime the driver will drive the vehicle over the road, street, or other ground the handles i to be oiled, and the operator will regulate the discharge of the oil, asphalt, or other material to be distributed, by manipulating by the springs 48 shown in Fig. 1 t us to 'from the tee, e1 ows upon the outer ends of the branch feedipes, 'ipe-sections extendmg backwardly rom t e elbows, the joints revent injury to'the distributing appliances rom jolts and jars that might otherwise be destructive or injurious.

It is not necessary that the valve sections tightly fit the tubular bore of the valve-case I or shell, for the reason that when the valve v is closed the weight of the liquid pressing downward upon the valve-section tends to hold the valve tightly closed and to revent any leakage therefrom, and this ist e case where theval e-sections are loosely fitted in the bore; the only precaution necessary being that the lower portion of the valvesection when closed shall conform to the portion of the shell 11 onwhich it rests.

The construction W ereby the distributerpipe is controlled by tubular valve-sections gives great strength of parts, and security against disalinement or disarrangement of the valve is done awaywith.

What I claim is 1. The combination with a truck, s rings mounted on the truck and a heat insu atin tank mounted on the-springs, of a vertica feed-pipe leading downwardl from the tank; a tee at the lower end 0 the feed-pipe, branch feed-pi es extending transversely between the pipe-sections and the tee being loose enough to allow the pipe-sections to and connecting therewith and swing up and down, a distributing-pipe connected to the rear ends of the pipe-sections, and means carried by the truck for raising and lowering the distributing-pipes 2. A tank, a feed-pipe leading from-,the tank, a distributer-pipe. connected to the feed-pi e, a valve-shell connected to and paralle with the -distributerpipe and pro vided with outlets, there vbeing a series of ports extending along and leading from the distributer-pipe into the valve-shell, a valvetube rotatably mounted "in the valve-shell and provided with a series of inlet and outlet ports arranged therealong so that by rotatmg the valve-tube the flow from the distributer-pipe through the valve-tube is regulated, and so that when the valve-tube is set at any position to open the outlets the discharge through all of said "outlets will be practically uniform as to volume and veocity. a

3. A truck, a tank mounted on the truck, a feed-pipe extending from the tank, a distributer-pi e connected to the feed-pipe and mounted orizontally and transversely of the line of travel, means for moving the distributer-pipe up and down, a valve-shellextending the length of the distributor-pipe rovided along said shell with a series of out ets, and means for simultaneously regulating said outlets by opening or closing the same.

4. A truck, a tank mounted thereon, a feed-pipe extending downwardly from the truck, a tee at the lower end of the feed ipe,

branch-pipes extending horizontally mm the tee transversely of the line of travel, el-

bows at the outer ends of the branch-pipes, pipe-sections extending backwardly from" the elbows, the joints between the pipe-sections and the tee being loose enough to allow the pipe-sections to' swing up and down, a distributer-pipe connected to the rear ends of the pipe-sections, and a Windlass carried by the truck and connected to the distributer-pi e for raising and lowering the same.

5. distributer-pipe provided in its lower side with slots, a valve case fastened thereto and provided with slots corres onding to and registering with the slots of t e distributerpipe, and being rovided with a peripheral slot and with out ets, a tubular valve-section in said valve-case and rovided with outlets to register with the out ets of the case in one ositlon of the valve, and to close said outets at another position .of the valve, and provided with a slot of greater width than case, and an arm throu h said peripheral slot and screwed into said valve-sect1on to turn the same.

andregistering' with the inlet slot of, said a 6. A distributer-pipe provided with outlet slots, a valve-case provided with hangers and with a slot to register with the outlet slots of said distributer-pipe, and also proiso ' let-slots, a valve-casing extending the length of the distributer-pipe and having ports communicating therewith, a tubular valve in said valve-casing and having inlet and outlet ports forming passages transversely through the valve, there being slots in the valve-casing, and a handle connected to the tubular valve through said slots so that by operating the handle the valve is operated to eontrol the flow from the distributer-pipe throu h the valve.

8. pipe provided with slots, means to supply llquid to said pipe, a valve case fastened to said pipe and provided with slots registering with the slots of the pipe, and also provided with outlet perforations and with plugs in its ends, a plurality of tubular raise and lower t sections in said ease provided with outlets to register with the outlets of the case and also provided with slots to register with, and wider than, the slots of the case, said case being provided with eripheral slots, and arms connected with sald valve-sections and extending through said peripheral slots to rotate said sections.

9. A road-oiler provided with a swiveled distributer, a rotary valve to control said distributer, a support fastened to the frame of the oiler rearwardly of the distributer, and manual means operable from said support to e distributer and to operate the valve means thereof.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 14th day of December 1907.

CHARLES ARTHUR BALDWIN.

In presence of JAMES R. TOWNSEND, M. BEULAH TOWNSEND. 

